Electric accumulator-plate.



G.. F. GUYON & R. W. VICARBY.

ELBGTRIG A GGUMULATOR PLATE. APBLloATI'oN FILED 009139, 1999.

'Paentea Mar. 9, 11909.

l, i. UNlTE lator plates of the Plante type.

y -ao ---strips, but Vprovsiding fer free'escape of gas sra learner ernten..

fCHARLES F. GUYON AND ROBERT WLLIAM VICAREY, OF NEW YORK, N. Y., ASSIGNORS TO INDUST1t`IV:.Yl JI 1,v MSill..O BfAlllif-BATIllRY COMPANY, A CORPORATION OF NEW JERSEY.

ELEGTEC ACCUMULATOR-PLATE.

No. spasm.

. Specicaton of Letters Patent.' *A

Patented March 9, 1909.

Application led October 30,1908. Serial No. 490,204.

5 Great Britain, residing at New York, in the county of New York and State of New York, have invented a certain new and useful lmprovement in' Electric Accumulator-Plates, of Which the following is a s ecification.

The invention relates to e ectrical accumu- InU. S. Re-issued Letters Patent No. 12195 to Chaimsonovitz P. Elieson and Vladimir de .y

Bobinsky, dated January 26, 1904, is set forth an accumulator plate in which thin strips of lead, alternately corrugated and straight, project laterally, like the vanes of a feather, from a vertical rib or backbone of the same metal. The active material adhering to the surface of the corrugated strips and expanding laterally opens out said corrugated strips, so that after said material is formed, the distancefron'i the central rib to the extremity of the strip is considerably in- 25 creased, and hence, by reason of the leverage, said stri s tend to drop or separate and the whole plate becomes more or less buckled and irregular.

Ourpresent invention depends, among other things, upon our discovery that where the corrugatiens in the ,corrugated strips are closed, We not only obtain additional active surface, but by reasonfof the reduction in the horizontal component ofr force tending to elongate the strips, we pretent the undue eX- pansion and deformation'bcfore noted. We also make the strips both corrugated and plain, in V or channel form, and dispose them one within the other, with the o enings u from between them. We also construct the plate in sections separated by transverse metal ribs, so that any possible undue buckling of the strips in one section does not 'affect the strips in an adjoinin section, and we provide a channeled guar( bar on the edges of the plate, which, while not interfering with the free elongationof the strips, also assists y in kee ing said plate in shape.

In t 1e accompanying drawings-Figure 1 `,fis a side elevation of our improved plate, a portion of the strip in the four lower sections eing omitted.` Fig. p, is an edge view.

Ward, thereby not only strengt ieningtie 3 .is a section on the line a', cc, of Fig. 4. Fig. 4 is a section on the line y, y, of Fig. 1. Fig. 5 isa perspective view of a ortion of one of the corrugated strips, an( Fig. 6 a

similar view of one of the non-corrugated strips.

Similar numbers and letters of reference indicate like parts.

1 and 2 are ribs of lead connected together y by bars 3 of solder or other suitable material,

and secured at their ends to the transverse upper and lower bars 4, 5,`the upper bar 4 carrying the terminal 6. Joined at their inner ends to ribs 1 and 2 are substantially rigid bars 7, 8, 9, 10, which divide the whole area of the late into six sections, A, B,'C, D, E, F. Tie outer ends of bars 7, S, 9, "19 are free and onthe upper side of each is a V- shaped-.channel i y Soldered at their inner ends to the ribs 1 and 2 are alternate corrugated strips 11, and

non-corrugated strips 12, made of thin sheet lead. These strips 1n cross section are in the form of a V and are disposed one within .the other, the corrugated and non-corrugated strips alternating. The lowest strips in the sections A, B, C, D rest in the channels in the bars'7, 8, 9, 10.A The lowest strips in the sections E, F rest in similar channels formed in the bottom transverse bar 5. The outer ends of the strips 11, 12 are free. 4

Attention is particularly called to the corrugations in the strips 11, their construction being such that the opposing metal surfaces, due to the bending of the strip, come in oont'act and do not stand apart as shown in the aforesaid Elieson and Bobinsky patent. lVe nd that when the corru'gations are thus formed, the tendency l,of lthe strip to eX and longitudinally is greatly reduced, while at the same time suflicientl expansion takes lace to permit the stri to accommodate itself to the changing'bul c of the active niaterial, during-the charging, and discharging of the cell. Also by reason of the closeness of the corrugations, we are enabled to give to each strip a greater active surface. vVith the lateral expansion of the strips thus re' duced, it becomes possible to provide the plate with strengthening bars 13, 14 which are made in channel shape so as to overlap the edges of the strips, as shown in Fig. 3, and to provide a space 15 in which the stripsl are are secured to the transverse bars 4, 5. 'lihe width of the space vis to be sufficient to strips suffi-1 provide for an elongation of the .i-cient vto avoid buckling of the plate, before backs l16 Aof saidy bars.

v.substantially as shown,

the free `extremities of said strips reach rthe stifi'enthe strips, we make themin Vfqrm, with the-openings upward, so that thegases generated may freely esca e from between said strips. By reason oft e division of the plate into lsections separated by the rigid bars 7, 8,' 9, 10, 'anylpossiblebuckling or deformation ofthe Ystrips in one section does not' affect the strips `in .any other section.

: We claim:

1. In an electric accumulator late com-` ,j prising a conducting rib and a stri s of thin metal alternately corrugated an non corrugated laterally projecting therefrom, and free atv their outer ends: the said strips being'l formed so that the opposing surfaces produced by said corrugatlons l shall lie-in contact.

2; In an electric accumulator late cornprising a conductin rib .and a v strips of thin meta alternately corru ated andnon-corrugatedlaterallyprojectin t erefrom and free at their outer ends: t esaid corrugated strips being formed so that the -fr opposing surfaces produced by su ch corrugatfins shall lie in contact.

An electric accumulator late comprising transverse bars, a conductlng rib extending between said b'ars, a plurality of strips of thin metal alternately corrugated and noncorrugated laterally projecting from said rib,

and free at their outerends, and a channeled guard securedto: the ends of' said bars and receiving the free endsof said strips.

4. An electric accumulator plate compris?l In order further to j p urality' of.

`ing between said bars,

p urality .ot

lurality of V ing. al conducting'ribl and ternately corshaped stripsof thin metal a rugated'a'nd non-corrugated laterally projecting-from said rib, and freerat their outer late comprissurfaces corrugations sha l lie in contact. 6. An electric accumulator plate comprisa conducting extenda plurality ofl'groups of strips of thin metal alternately corrugateding transverse bars, lng between said bars,

and non-corrugated laterally projecting from said rib,

jecting from said rib between said groups.

7.l AAn electric accumulator ing transverse bars, a cqnductlng ribv extenda plurality of groups of strips of thin metal alternately corrugated and non-corrugated laterally projecting from said rib, and free at their outer ends, subkand lfree at their outery ends, and substantially rigid bars also laterally pro--V late comprisstantiall rigid bars disposed-between said groups, aterally projecting from said rib and ee at their outer ends, and a channeled guard bar secured on the ed e of said plate and receiving `the free ends oi said strips and Ase arating bars. u

testimony whereof, we have affixed-our signatures in presence of two witnesses.

CHARLES F. GUYON.

vROBERT WILLIAM VCAREY.

Witnesses: i

GERTRUDE T. PORTER,

MAY T. `I VIoGanRr. 

